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gh-107155: Fix help() for lambda function with return annotation (GH-107401)

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Kirill Podoprigora 2024-02-17 15:47:51 +03:00 • committed by GitHub
parent 664965a1c1
commit b9a9e3dd62
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3 changed files with 31 additions and 2 deletions
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24
Lib/test/test_pydoc/test_pydoc.py
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@ -693,6 +693,30 @@ class PydocDocTest(unittest.TestCase):
finally:
pydoc.getpager = getpager_old
def test_lambda_with_return_annotation(self):
func = lambda a, b, c: 1
func.__annotations__ = {"return": int}
with captured_output('stdout') as help_io:
pydoc.help(func)
helptext = help_io.getvalue()
self.assertIn("lambda (a, b, c) -> int", helptext)
def test_lambda_without_return_annotation(self):
func = lambda a, b, c: 1
func.__annotations__ = {"a": int, "b": int, "c": int}
with captured_output('stdout') as help_io:
pydoc.help(func)
helptext = help_io.getvalue()
self.assertIn("lambda (a: int, b: int, c: int)", helptext)
def test_lambda_with_return_and_params_annotation(self):
func = lambda a, b, c: 1
func.__annotations__ = {"a": int, "b": int, "c": int, "return": int}
with captured_output('stdout') as help_io:
pydoc.help(func)
helptext = help_io.getvalue()
self.assertIn("lambda (a: int, b: int, c: int) -> int", helptext)
def test_namedtuple_fields(self):
Person = namedtuple('Person', ['nickname', 'firstname'])
with captured_stdout() as help_io: